Air and gas compressor.



O. W. MILES. AIR AND GAS COMPRESSOR. APPLICATION FILED DEC. 20, 1909.

Patented June 11, 1912.

2 SHEETS-SHEET 1.

C. W. MILES. AIR AND GAS COMPRESSOR. APPLICATION FILED DEC. 20, 1909.

Patented June 11, 1912,

2 SHBETSSHEET 2 V useas an air PATENT onrrcn.

I STEPHEN mans, oi! GEEENS'BORO, ivoR'n'H CAROLINA.

AIR AND GA$ CGMPRESSQR.

Specification Letters fatnt. animation 'filii Dc''ifiber 20', 1969. Serial no. 534,146.

Patenteddune 11, 1912.

To all whom it camera."

Be it known that I, CASPER WV.;M1LES, a citizen of the United States, residing in Anderson township, in the county of Hamilton and State of Ohio, have invented certainnew and useful l npro'fvements in Air and Gas Compressors-of which the following is a specification. v

My invention relates to improvements in air and gas compressors. i

One of its 0 jects is to provide-a simple and efficient compressor of rotary -'-type for or gas compressor.

Another object is to provide a compressor in which the valves are of minor importance or may be dispensed with entirely if desired.

Another object is to provide improved means for removing the heat from the compressed gas Another object is to provide improved means f0 I lubricating the compressor parts, and providinga liquid seal to prevent leakage in the compressor.-

It further consists in "certain details of form, combination and arrangement, all of which'willbe more fully set forth in the description of the accompanying drawings in which: r I

Figure 1 is a side elevation of'my inn proved compressor. Fig. 2 is a vertical section through the same on line "v of 1; Fig. 3 is a section through the same-on line in a: of Fig. '2 Fig. is a top view similar to Fig; 4 illustratinga modification. is a 'view similar to Fig.-

planview; Fig. .5 isa 2 .of a -modi -fication withfva-lves omit-ted. Fig,- 7 is a detail of the gas exit ofFig; 6. Fig. 8 -i s a detail sectional view illustrating a modification of the form shown in Fig. 2.

V In the accompanying drawings A represents the compressolythe frame or shell of a plurality of rings a clamped between disks or plates a thereby forming a series of cylindrical compressor chambers a clamped together by bolts a. Within the respective compressor chambers are eccentrically mounted. cylinders or disks Beach having-a series of radial slots b in which are mounted spring actuated slides or piungers- '6' the outer ends of which press which comprises passage at the opposite side.

againstand maintain sliding contact with the inner face of the rings, a. The disks B and Slides 6 fit closely between the plates a and are mounted upon a shaft B to which the disks 'B are keyed or otherwise rigidly secured so as to revolve with said shaft, which is journaled in hearings in the plates a. The outer plates a are provided with stuffing boxes to prevent the passage of gas at the journals.

Each of the rings a is provided with a gas intake passage G from which the gas enters the central chamber of the ring by means of small passages-0, while any heavy particles settle to the bottom of the passage C andmay be removed through the openings a which are ordinarily closed by a plug or cap 0 vided with an exit passage D which as shown in Figs. 2 and 3 are controlled by exit valves d held to their seats by springs d and. guided loy' supports 01 through which the valve stems pass. c

Bv reason of the disks being concentrically mounted upon the shaft B which is eccentrieally located within the central chambers of the rings a, so as to touch said ring at one point, there is a crescent shaped space E between the periphery of disk B and the inner wall of the chambers, which space isdivided into" sections by the slides b'therehy when thshaft i's revolving eontinua'Il-y'taking the gasinto said space from the inlet passage on one side and compressingand forcing the gas through the riit The passages C are arranged as to supply gas to the space E between the respective pairs of slides until the widest portion of the space E is reached, so" as to gas in the compressor;

The respective'rings a and disks B are progressively narrower, and the partly compressed gas discharged from t hefi'rstor widest ring a' is conducted by a passage f to the inlet passage C of the next r ng of the series, from the discharge of which the still further compressed gas is conducted by passage f to the supply. passage next or last ring a, of the compression passes therefrom to a Each of the rings a is ,prov avoid expanding the 7 C of the in which the 'final stage takes place and the gas storage tank or prefward toward the intake I provide a supply of oil or other liquid, preferably a lubricant occupying a portion of the tank H through which the compressed gas rises or passes to reach the upper portion of tank H. Said lubricant is cooled by the water circulating in the pipes h, and in said tank serves as an efiicient liquid conveyer of heat from the .15

compressed gas to the cooling water. A pipe K conducts a portion of said lubricant to the branch pipes 7c is 70 from which regulated quantities are admitted by' valves 10 k k to the chambers E of the respective the gas commencestherein thus serving to seal the compressor joints and prevent the escape of the gas during compression. An annular rib or flange K in the lower portion of the tank H serves to collect a flange K and the wall of the tank H to serve as a supply for the pipe K.

L represents water jackets formed in the walls of the rings a at the point'where compression of the gas occurs, and through which cooling water is conducted to prevent excessive heating of the compressor.

While I preferably employ one or more of the exit valves or equivalent valves to prevent a return flow of the compressed gas,

yet due to the supply of lubricant durlng expansion, and the accumulation of said lubricant in the vertical sections of the exit passages, said lubricant will serve to prevent a return flow of gaswhile the shaft is revolving, and hence part or all of the exit valves ma be dispensed withif desired, as indicated n Figs. 6 and 7, where the section of ring a beneath the exit passage isprovided with a series ofsmall erforations or slits m for the passage of t e, compressed gas and lubricant from .chamber E to the exit passage m.

-tr ated a tank corresponding to tank H for each section of the compressor, .thus the gas is admitted to the first section through the inlet N and discharged from itsoutlet n into the lower portion of a coolin tank 'N referably containin a body of ubricant.

, rom the top of ta Nthe gas enters the inlet n of the second section of the compressor, and from its outlet n passes to the lower portion of cooling tank'N, and

. from the top of tank N to the inlet of the third section of the compressor, and from its exit n to the lower portion of coolin tank- N Thus the gas is successively; coole after each stage of compression. P P represent rings a at a point where the compression of cooled portion of the lubricant between said In the modification Fig. 5 I have illus-g and conduits connecting said the supply and exit pipes for the coolingv of the disks B and a slide Q supported relative thereto, and against side play bymeans of a stud g threaded to the disk B. In Fig. 2 Ihave shown three slides to each disk B, and in Fig. 6 four slides. The

number of slidesshould be sufficient to sup ply a maximum charge of gas, between each pair of slides and to prevent expanding the gas 'in the compressor before compression takes place.

The mechanism herein illustrated and described is capable of considerable modification without 'departing from the principle of my invention.

Having described my invention what; I

. claim is:

1. In a uglas compressor, means for providing a m ti-stage compression with each stage of limited pressure ca acity, said means comprising a plurality o compressor cylinders embodying cylindrical members each embraced between two end plates or disks, a shaft journaled in said end plates eccentrically with reference to said cylinders, a plurality of rotary disks eccentrically.

located in said, cylinders and concentrically supported u on and driven by said shaft,

said rotary isks fitting closely between the 7 end plates of the respective cylinders, a plurality of radially movable plungers for each of said disks, said plungers being movably seated in recesses in. said disks and laterallysupported by said end plates, and in contact at their outer ends with the inner walls of the respective cylinders and adapted to form therewith a compression chamber of gradually decreasing cross sectional area, means for introducing a liquid seal between the plungers and inner walls during the earlier period only of compressing action of the, plungers, gas supply and exit ports to the respective cylinders, each exit port being positioned in'close proximity to the point of least cross sectional area of said chamber, ports to the respective cylinders'in series. 1

2. Ina scompressor, means for providing a m ti-stag compression with each stage of limited pressure ,ca acity, said means. comprisindg a plurality 0F compressor cylinders embo ying cylindrical members each embraced between two 'end'plates' o-r disks, a shaft journaled in said respective end plates .ec centrically with 'reference' to said cylinders, a lurality of rotary disks,

located within sai respective cylinders and concentrically slcllpported u on and driven by said shaft, sai rotary dis s fitting closely between the end plates of said respective cylinders, a plurality of radially movable plungers, exceeding two in number to each least cross sectional area of said chamber and conduits connecting said port f the respective cylinders in ser es.

3. In a'gas compressor, means for proriding a mult-i-stage compression with each stage of limited pressure capacity, sald means comprising a plurality of compressor cylinders embodying cylindrical members each embraced between two end plates or disks, a shaft journaled in said respective end plates eccentrically with reference to said cylinders, a plurality of rotary disks located within said respective cylinders and concentrically supported upon and driven by said shaft, said rotary disks fitting closely between the end plates of said respective cylinders, a plurality of radially movable plungers, exceeding two in numher to each disk, seated in recesses in said rotary disks and closely fitting between said cylinder end plates, the outer ends of said plungers continuously cont-acting with the inner walls of said cylinders, and adapted to form therewith a compression chamber of gradually decreasing cross sectional area, means for introducing a liquid seal between the plungers and inner, .walls during the earlier period only of compressingaction of the plungers, a plurality of gas supply ports through the cylinder walls of the respective cylinders adapted to continuously supply gas on the intake side of said cylinders to a point where the space between said plungers reaches a maximum, exit ports to the respective cylinders, each exit .port being positioned in close proximity to.

the point of least cross sectional area-of said chamber, and conduits connecting said ports of the respective cylinders in series.

4. In agas compressor, means for pro- .viding a multi-stage compression with each stage .of limited pressure capacity, said means comprisinga plurality of compressor cylinders embodying cylindrical members, each embraced between two end plates or disks, ashaft journaled. in said respective end-"plates eccentrically with reference to said cylinders,- a plurality ofrotary-"disks located withinsaid respective cylinders and; concentrically supported upon and driven by said shaft, said rotary disks fitting closely between'the end plates of said respective cylinders, a plurality of radially movable plungers, exceeding two in number to each disk, seated in recesses in said ro-. tary disks and closely fitting between said cylinder-end plates, the outer ends of said plungers continuously contacting with the inner walls of said cylinders and adapted to form therewith a compression chamber of gradually decreasing cross sectional area, means-for introducing a liquid seal between the plungers and the inner walls during the earlier period only of compression action of the plungers, gas supply and exit ports to the respective cylinders, each exit port being positioned in close proximity to the point of least cross sectional area of said chamber, and valve controlled conduits connecting said respective ports of said cylinders in series.

5. In a gas compressor, means for providing a multi-stage compression with each stage of limited pressure capacity, said means comprising a plurality of compressor cylinders embodying cylindrical members each embraced between two end plates'or disks, a shaft journaled in said respective end plates eccentrically with reference to said cylinders, a plurality of rotary disks located within said respective cylinders and concentrically supported upon and driven by said shaft, said rotary disks fitting closely between the end plates ofksaid respectiye cylinders, a plurality of'radially movable plungers, exceeding two in number to each disk, seated in recesses in said rotary disks and closely fitting between said cylinder end plates, the outer ends of said plungers continuously contacting with the inner walls pf said cylinders and adapted to form therewith a compression chamber of gradually decreasing cross sectional area,

a plurality of gas supply ports through the cylinder walls of the respective cylinders adapted to continuously supply gas on the intake side of said cylinders to a point where the space between said plungers reaches a maximum, valve controlled exit ports to the respective cylinders, each exit port being positioned in close proximity to the point of least cross sectional area of cylinders emlo'odying cylindrical members:

each embraced between two end plates or disks, a shaft journaled in said respective end plates eccentrically with reference to said cylinders, a plurality of rotary disks located within said respective cylinders and concentrically supported upon and driven by said shaft, said rotary disks fitting closely between the end plates-of said respective cylinders, aplurality of radially movable plungers, exceeding two in number to each disk, seated in recesses in said rotary disks and closely fitting between said cylinder end plates, the outer ends of said p ungers continuously contacting with the inner walls of said cylinders and adapted to form therewith a compression chamber of gradually decreasing cross sectional area, means for introducinga l quid seal between the plungers and lnner walls durlng the earller "period only of compressing action of the centricallv .with reference to said cylinder,

a rotary disk located'withinsaid cylinder and concentrically supported upon and driven by said shaft, said rotary disk fitting closely. between the end plates of said cylinder, a plurality of radially movable plungers, exceeding two in munber, seated in recesses in said rotary disk and closely fitting between said cylinder end plates, the outer ends of said plungers continuously contacting'with the inner wall of said cylinder and adapted to form therewith a compression chamber of gradually decreasing'cross sectional area, gas supply and exit ports to said cylinder, each exit port being positioned in close proximity to the point of I least cross sectional, area of said chamber, a chamber connected with the exit port to receive the gas and a liquid sealing and lubricating medium and to separate said liquid medium from the gas and retain the liquid in the chamber. means for cooling said liquid in said chamber, and mechanism tofeed a regulated supply of said cooled liquid medium to said cylinder during the earlier period only of compressing action.

' '8. In agas compressor, means for providing a multi-stage compression with each stage of limited pressure capacity, said means c prising a plurality of a joining compressor cylinders each embodying a cylindrical memberembracedbetween two end plates or disks, a shaft journaled in said respective end plates eccentrically with reference to said cylinders, a plurality of rotary disks located within said respective cylinders andconcentrically supported upon and driven by said shaft, said rotary dlSkS fitting closely between the end plates of said cylinders, a plurality of radially movableplungers, exceeding two in number to each disk, seated in recesses in said rotary dlSkS and closely fitting between said cylinder end plates, the outer ends of said plungers continuously contacting with the inner walls of said cylinders, and adapted to form there= with a compression chamber of gradually decreasing cross sectional area, gas supply and exit ports to the respective cylinders, each exit port being positioned in close proximity to the point of least cross sec tional area of said chamber, conduits connecting said ports in series, a chamber connected to the exit port of the last of said cylinders to receive and store a liquid lubri eating and sealing medium, through which medium the compressed gas passes, means to cool the liquid medium in said chamber, and mechanism to supplyv a regulated quantityof said cooled liquid medium to the first of said series of compressors during the earlier period only, of compressing action therein and from which it successively passes through the remaining cylinders.

9 In a gas compressor, means for providing a multi-stage compression with each stage of limited pressure capacity, said means comprising a plurality of adjoining compressor cylinderseach embodying a cylindrical member embraced between two end plates or disks, a shaft journaled in said respective end plates eccentrically with referenceto said cylinders, a plurality of rotary disks located within said respective cylinders and concentrically supported upon and driven by said shaft, saidv rotary disks fitting closely between the end lates of said respective cylinders, a plurality of radially movable plungers, exceeding two 7 in number to each disk, seated in recesses in said rotary disks and closely fitting between said cylinder end plates, the outer ends of said plungers continuously contactingwith the inner walls of. said cylinders, and adapted to form therewith a compression cham ber of gradually decreasing cross sectional area, gas supply and exit ports to the respective cylinders, each exit port being positioned in close proximity to the point of least cross sectional area of sald chamber,

- conduits connecting said ports of the. respective cylinders in ser1es,-a series of chambers into which the exit conduits of the respective cylinders discharge, said chambers S61V111g as passages for the a'as and as storage reservoirs for a liquid lubricating and In testimonywhereof I have afiixed my sealing medium, means to cool the liquid signature in presence of two Witnesses.

medium stored in said respective chambers and mechanism to supply a regulated quan p CASPER MILES 5 tity of said cooled liquid medium to each of Witnesses: F

said respective cylinders during the earlier B. R. KBQPF,

period only of compressing action. WALTER F. MURRAY. 

